1240411223573 has 2 divisors, whose sum is σ = 1240411223574. Its totient is φ = 1240411223572.

The previous prime is 1240411223399. The next prime is 1240411223593. The reversal of 1240411223573 is 3753221140421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1233436802404 + 6974421169 = 1110602^2 + 83513^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240411223573 - 2⁴⁰ = 140899595797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240411223593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620205611786 + 620205611787.

It is an arithmetic number, because the mean of its divisors is an integer number (620205611787).

Almost surely, 2^{1240411223573} is an apocalyptic number.

It is an amenable number.

1240411223573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240411223573 is an equidigital number, since it uses as much as digits as its factorization.

1240411223573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 1240411223573 its reverse (3753221140421), we get a palindrome (4993632363994).

The spelling of 1240411223573 in words is "one trillion, two hundred forty billion, four hundred eleven million, two hundred twenty-three thousand, five hundred seventy-three".